Guaranteed Site Remediation Solutions

Presentation Outline

1) Site Background

2) Project Objectives and Challenges

3) Remedial Strategy Selection

4) Remedial Strategy Implementation

5) Project Results

6) Conclusion / Question Period

Site Background

Wells[Abandoned]

Current Lease

Flare Pit

Certified 1964

Battery

[Flare Pit and Tank Farm]

Certified 1968

Project Objectives

1) Soil Conservation

2) On-site Treatment (PHC)– Alberta Soil and Water Quality Guidelines for

Hydrocarbons at Upstream Oil and Gas Facilities (Surface,Fine Grain, Agricultural and Potable Water Pathway)

Challenges

1) Changing PHC Guideline

2) Absence of formally accepted closuresampling method in Alberta

3) Minimal On-site Treatment Experience

4) Project Duration

5) Remediation Contractor Selection

Challenges

1) Biotreatment of Crude Oil Contamination

2) Prairie Gumbo

3) Weather Conditions

4) New Stringent CWS - CCME (F3)

5) Guaranteed Results (Lump Sum Contract)

Remedial Strategy Selection

1) Volume Estimate– Supplemental Site investigation (Grid)

– 3-D Vizualization

2) Treatability Study

Biogenie’s R&D Services - Treatability

Biogenie’s R&D Services - Treatability

Treatability Results

Parameter Initial Mean* Concentration

(mg/kg)

Final Mean* Concentration

(mg/kg)

Treatment Efficiency

%

PHC – F1 (C6-C10) --- --- --- PHC – F2 (>C10-C16) 1 244 120 90 PHC – F3 (>C16-C34) 3 526 1 456 59 PHC – F4 (>C34+) 1 330 824 38 * Triplicate Samples

Remedial Strategy Selection

Design Considerations:• Space available on-site• High efficiency biotreatment capability

required (High F3)• time available to treat material• Excavation work under winter conditions

Remedial Strategy Implementation

Project Results

1a 1c 1d1b 1e

2a 2b 2c 2d 2e

300 m3Biopile Plan View

AirPiping

Composite 1

Composite 2X-Section

Ref.: - BC- QC

Project Results

Parameter Initial Mean

Concentration (mg/kg)

Final Mean Concentration

(mg/kg)

Target Criteria

PHC – F1 (C6-C10) 148 21 260 PHC – F2 (>C10-C16) 436 111 900 PHC – F3 (>C16-C34) 1 274 532 800 PHC – F4 (>C34+) 607 232 4 000

Project Results

1) Biotreatment of 11,150 m3 to TIER 1 – Surface (fine soil)2) Segregation of 1,200 m3 before off-site disposal (Class II)3) Biotreatment duration period - 6 months4) Overall Success